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<navigation>
<popup starttime="00:00:01:000" stoptime="00:00:05:000">
	<intent>intro</intent>
		<text>Let's learn about volume!</text>
			</popup>
	<popup starttime="00:00:23:600" stoptime="00:00:25:000" pause="5">
		<intent>prompt</intent>
			<width>460</width>
				<x>10</x>
					<text>Write this down.</text>
					</popup>
	<popup starttime="00:01:10:000" stoptime="00:01:12:000" pause="5">
		<intent>prompt</intent>
			<width>460</width>
				<y>280</y>
				<x>10</x>
					<text>Write down this formula.</text>
					</popup>
	<popup starttime="00:02:43:500" stoptime="00:02:48:000" pause="5">
		<intent>prompt</intent>
			<width>460</width>
				<x>10</x>
				<y>280</y>
					<text>Write down this formula.</text>
					</popup>
	<popup starttime="00:05:05:000" stoptime="00:05:10:000">
		<intent>reminder</intent>
			<y>270</y>
				<text>Volume is the amount of space enclosed by a solid.</text>
					</popup>
	<popup starttime="00:05:28:500" stoptime="00:05:30:000" pause="5">
		<intent>prompt</intent>
			<width>460</width>
				<x>10</x>
				<y>280</y>
					<text>Write down this formula.</text>
					</popup>
	<conceptcheck stoptime="00:06:58:800">
		<question>Approximate the volume of this sphere.</question>
			<answer value='500 FRAC22/3'>500 FRAC22/3</answer>
				<answer value='FRAC11,000/21'>FRAC11,000/21</answer>
					<answer value='523 FRAC17/21'>523 FRAC17/21</answer>
						<correct>523 FRAC17/21</correct>
						</conceptcheck>
	<popup starttime="00:08:19:000" stoptime="00:08:24:000">
		<intent>reminder</intent>
			<text>Volume is measured in cubic units.</text>
			</popup>
	<popup starttime="00:08:33:000" stoptime="00:08:34:000" pause="5">
		<intent>prompt</intent>
			<width>460</width>
				<x>10</x>
				<y>280</y>
					<text>Write down this formula.</text>
					</popup>
	
	
	
</navigation>
